#19319: iterator over pairs on diagonals a la Cantor pairing
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Reporter: dkrenn | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-6.9
Component: misc | Resolution:
Keywords: | Merged in:
Authors: Daniel Krenn | Reviewers:
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/dkrenn/product_cantor_pairing | 17229c620b4aff47161b725de2ebb4f890cfc2af
Dependencies: | Stopgaps:
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Comment (by ncohen):
If you don't care, I just gave it a try:
{{{
def product(A,B):
B = iter(B)
lb = []
b_done = False
for a in A:
try:
if not b_done:
lb.append(B.next())
except StopIteration:
b_done = True
for b in lb:
yield (a,b)
}}}
Does the job.
Nathann
--
Ticket URL: <http://trac.sagemath.org/ticket/19319#comment:5>
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